Nikon DTM-502 Series Instruction Manual page 91

Once the plane is defined, the calculated Sta/dZ and
values are updated as you move the telescope. No
distance measurement is required.
Sta = Horizontal distance from P1 to the target
point along the baseline
3
dZ = Vertical distance from P1 to the target point.
Switching screens by [DSP]
To record the point, press the [ENT] key on any
screen (V-PLN1/3 to V-PLN3/3).
Input PT and CD, then press the [ENT] key.
= Sample records in [PRG]
CO,Vertical Ref Plane Pt1:516-A1 Pt2:530
CO,Sta=68.021 dz=17.459
SS,30123-A48,1.5480,16.4020,40.4720,89.0730,14:22:47,
3-65
PLN1/3 PLN2/3
Sta: X:
dZ:
Y:
Z:
→
[6.V-Plane] =
PLN3/3
HA:
VA: